Companies covered
The following communications providers are registered with CISAS and are listed in alphabetical order. If your communications provider has told you that they are a member of CISAS but they are not on this list then please contact us.
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360 Telecoms
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4G Mobiles & Data Ltd
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4Net Technologies Ltd
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9 Group
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A1 Comms Ltd
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Abbeycomp IT Solutions
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Acorn Broadband
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ADNOS
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ADSI Ltd
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affordablemobiles. co.uk
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Agile UK
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AGILIS Mobile
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AJRB Services
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Alfs Tech Ltd
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Alnwick Computerware Ltd
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Aloha Connect
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Aloha Telecomm-unications Ltd
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Alpha Telecom
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Amatis Networks
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Amvia
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Andrews & Arnold Ltd
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Anvilmobile Limited
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Arkessa Limited
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Asda Mobile
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Aspen Solutions Ltd
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AT Telecommun-ications Limited
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Atom IP Ltd
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Babble Cloud
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Barritel Limited
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Be Communications
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Beeline Broadband Ltd
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BEIP Limited
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Bespoke Telephony Solutions Limited
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BigBlu Ltd
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Bink Networks Ltd
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Black Widow Ltd
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Blaucomm Ltd
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Bluebox Broadband
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Bongo IT
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Borderlink Broadband Limited
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Borders Online Ltd
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Box Broadband Ltd
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Bright Server Hosting
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Brighter Bills
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Brightstar Ltd
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Briskona Ltd
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Britannic Technologies
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Broadgate Voice and Data Limited
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Broadway Partners Limited
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Bulldog Broadband
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Burstfire Networks Ltd
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BusinessMovers. Tech Limited
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Buzz Networks Limited
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Call27 Telecomm-unications Ltd
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Camping Connect
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CATalyst Systems North Wales Ltd
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Centracom
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Chaser Communications Ltd
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Chess Limited
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Cirrus IT Services (UK) Limited
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Citrus Telecom
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Claranet Limited
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Clarion Communications
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Clarity Telecom
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Class Affinity Projects Ltd
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Clear Picture Services Limited
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Cloud Central Convergence Limited
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Cloud IT Ltd
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Cloud Phone Company
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Cloudstream Technology Limited
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Cobweb Solutions
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Code Technology Limited
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Com Systems
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COM-TEL Telecom Ltd
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Comms Unite Limited
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Community Information Technology
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Commworx Ltd
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Compatibility Limited
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Computer Systems UK Ltd
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Comvista Networks Ltd
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Connect
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Connecting Britain
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Contedia Limited
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Convergence Group Networks Ltd
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Corgi Telecom
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Cornerstone Business Solutions Ltd
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Corporate ICT
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Creative Work Studios Limited
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Creditcall Telecom Services Ltd
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Crockham Hill CIC
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Cyberair Ltd
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Dark Group Ltd
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Datacentres Ltd
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Dedi
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Delight Mobile
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Dial123 Limited
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DialGreen
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Digisolutions Ltd
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Direct Voice and Data
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DPS Technology Group
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Dualtone Communications Ltd
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Dunedin IT Ltd
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Earth Broadband
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East Point Business Services Ltd
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Eat IT Drink IT Ltd
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Ecotalk
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Edge Telecom
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efax
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EMtel Limited
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Equiinet
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Equity Networks Ltd
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eReceptionist
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Europasat
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eVoice
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Expert Telecom Limited
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Exponential-E Limited
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Express Telephony
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Eze Talk Ltd
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F One Technologies Ltd
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Fairfield Telecom
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Falconnet
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Farndale Free Range Ltd
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Fibre for Rural Nottinghamshire (F4RN)
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File Sanctuary Ltd
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Firefly Enterprises Ltd
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First Fibre Ltd
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Firstcom Europe CXP Ltd
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Fleur Telecom
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Flexspace No1 LLP
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FON
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Foofirst Limited
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FOS (Future Office Solutions Ltd)
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Fractal Telecom Services Limited
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Free03Numbers
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Frontier Voice Data Limited
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Fuse Telecom
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Glo Talk
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Global 4 Communications Limited
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Global Reach Networks Ltd
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Globalgig Ltd
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Go Mobile
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Gold Connections Ltd
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Gower Coast IT Solutions LTD
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GPS Telecom Limited
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Grain Connect Limited
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Green
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Green Duck Ltd
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Green ISP
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Grip Communications Limited
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Guaranteed Telecom
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Hello IP
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Helpline Limited
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HeyBroadband Limited
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HII Communications Ltd
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Hive Telecom
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Hoki Ltd
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Home Telecom
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Hosted Lync 2013
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hotsplots GmbH
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HP Technology
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I.T Communications Ltd
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IceConnect
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iceDigital
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ICT Studio Limited
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Ideal 4 U Business Solutions Ltd
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iGEM Communications Ltd
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Immervox Limited
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Imperial Telecom
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Inspire Telecom
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Integrated Business Tele-communications Ltd
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Integrated Digital Services Ltd
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Integrated Network Services Ltd
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Intercity Telecoms
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Internet Connections Ltd
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Internet For Business
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Internet Services (EU)
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Invoco Telecom
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IT Clinic London Ltd
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IT Professional Services Limited
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iTalk
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ITG Ltd
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ITSwisp
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j2 Global Ireland
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Jaguar Telecom
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Javelin Broadband Limited
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Juice Broadband
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Just 03 Numbers
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Just 0800 Numbers
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Just 0844 Numbers
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Just 0845 Numbers
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Just Local Numbers
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Kalnet4u Ltd
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Kane Cloud Communications
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Kijoma Solutions Ltd
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Kingdom Mobile Limited
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Komputrade Ltd
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KSM Telecom
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Kube Networks Ltd
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Kuiper Technology Limited
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L A Comms
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Lake Technologies Ltd
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Lancashire County Council
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Landlord Broadband
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Lanonyx Telecom Ltd
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Lansalot Ltd
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Lascom Solutions Ltd
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LCHost
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Liberatis ltd
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Life Mobile
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Linix Ltd
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Link IP Networks Limited
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Lister Communications Ltd
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LJT Systems Ltd
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Locall Net Ltd
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Lonsdale Network Services Ltd
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Lothian Broadband Networks Limited
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Lotus Telecom
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Lycamobile
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M-Tech Systems Ltd
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Matrix 4G
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Merula Ltd
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Met Plus Telecom
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Met Technologies Limited
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Method B Ltd
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Metranet Communications Ltd
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Michaelston y Fedw Internet Community Interest Company
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Microcomms Professional Services
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Millenium Talk
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MMS Comms Ltd
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mobileshop.com
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Moorsweb
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Mouse UK
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Murex Mobile Limited
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Nasstar Limited
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National Business Communications Ltd
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NetConnex Broadband Ltd
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Netfuse Telecom Limited
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Netmatters Limited
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Network Fusion LLP
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Next IS
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Nimbus Hosting Ltd
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Nordtelekom Mobile
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Northsat Limited
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NOW TV
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Onecom
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Optilibta Ltd
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Oricom
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Pace Comms Limited
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Peak Telecom
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Perfect Broadband
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Phase 5 Communications Ltd
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Phi Network Systems
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phones.co.uk
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Pine Telecomm-unications Ltd
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Pop Telecom Centre Limited
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Premier Talk UK Ltd
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Primary PC Solutions
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Prime Connect Ltd
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Probado Ltd
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PSX Digital Ltd
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Pure IT Support Ltd
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Qubic Group Plc
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Razorblue Ltd
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Red Dragon I.T. Ltd
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Redshelf Ltd
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Reeves Lund & Co Ltd
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Restore TV
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Revolution Mobile
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Ridge Networks Limited
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Ringcentral UK Ltd
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Rocket Fibre Ltd
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Roebuck Communications
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RPM Business Communications Ltd
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Ryedale Communications LLP
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S W Communications Ltd
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S.E.Business Systems Ltd
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Satellite Solutions Worldwide Ltd
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Save9 Limited
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SBBS
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Scot-Tel Gould
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SCUKCO Ltd
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Siebert Telecom Solutions
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Simple Telecoms Ltd
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Sitech Solutions Limited
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SiteHQ
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Sky
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Skyline Networks and Consultancy Ltd
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Softlink Computer Systems Ltd
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Solar Communications Limited
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SOLWAY Communications
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SpecTronics Ltd
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Speedster-IT Ltd
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Spire Business Communications Limited
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Spire Communications
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Sprint Convergence Limited
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Starlink Internet Services Limited
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Stix Internet Ltd
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Storacall Technology Ltd
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Storm
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Stratus Technologies
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Stripe 21 Group Limited
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Sugun
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Sunshine Mobile Ltd
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Supatel Limited
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Sureline Communications Ltd
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Surftec Limited
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Swift Managed Services Ltd
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Switch & Switchconnect
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Switchboardfree
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Synergy UK Ltd
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Talk Talk Group
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Talking Technology
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Tallycost Ltd
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TallyTalk
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Tamar Telecom-munications
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Techsapiens Ltd
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TELA Technology Limited
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Telecom 9000 Ltd
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Telecom2 Ltd
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Telecomms Direct
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Teledesign Solutions Limited
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Telesis
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Terahost Ltd
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Tetralogic Ltd
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TFM Networks Limited
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The Cellphone Store Ltd
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The Networking People (North West) Ltd
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TIC (The Independent Choice) Ltd
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To The Moon Mobile Limited
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Total Network Solutions (Europe) Ltd
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Transparent Telecom
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Trogon Group Ltd
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TrueSpeed Communications Ltd
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Truphone Limited
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TwentyFirstCentury Network Solutions Ltd
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UK Cloud Communications Limited
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UK Wholesale Direct Ltd
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Unchained ISP Limited
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UnifiedRing Limited
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Unity Tech Group Ltd t/as Agile & Stratus
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uno Communications
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Urbroadband
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V12 Telecom
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Vaioni Group Ltd
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Vaioni Wholesale
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VDT Direct Ltd
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Virtual Talk Limited
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Virtually Local Ltd
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Vision Corporate Services
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Vision Mobile UK Ltd
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Vodafone
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VoIP Yonder
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VOIspeed Limited
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Vorboss Ltd
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Voxcloud
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VPW Systems (UK) Ltd
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Watchfront Ltd
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Wavenet Limited
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Webeye Ltd
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Welcomm Communications Limited
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Wessex Telecom
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White Mobile
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WideFM LTD
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Wireless Logic
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WiSpire Ltd
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Wizard Apps
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X-on Health Ltd
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X2 Communications Ltd
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Xonadu
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Yappl Limited
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Yorkshire Teleco-mmunications Ltd
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Your Telecoms Expert Ltd
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YSH
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Zen Internet Limited
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Zone Broadband